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CVE-2025-21066

Quick assessment

Affected
Samsung Mobile Samsung Notes
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

SAMSUNG Notes是韩国三星（SAMSUNG）公司的一个应用软件。用于提供一个记录功能。 SAMSUNG Notes 4.4.30.63之前版本存在安全漏洞，该漏洞源于SPI解码器存在越界读取，可能导致访问越界内存。

CVSS 4.0 · Medium EPSS 0.11% · P2

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2025-21066

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Out-of-bounds read in the SPI decoder in Samsung Notes prior to version 4.4.30.63 allows local attackers to access out-of-bounds memory.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
SAMSUNG Notes 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SAMSUNG Notes是韩国三星（SAMSUNG）公司的一个应用软件。用于提供一个记录功能。 SAMSUNG Notes 4.4.30.63之前版本存在安全漏洞，该漏洞源于SPI解码器存在越界读取，可能导致访问越界内存。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Samsung Mobile Samsung Notes 4.4.30.63 -

II. Public POCs for CVE-2025-21066

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III. Intelligence Information for CVE-2025-21066

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Vendor Advisories for CVE-2025-21066 (1)

Same Patch Batch · Samsung Mobile · 2025-10-10 · 26 CVEs total

CVE-2025-21064 8.8 HIGH SAMSUNG Smart Switch 安全漏洞
CVE-2025-21062 7.8 HIGH SAMSUNG Smart Switch 安全漏洞
CVE-2025-21058 7.3 HIGH SAMSUNG Mobile Routines 安全漏洞
CVE-2025-21050 7.1 HIGH SAMSUNG Mobile devices 安全漏洞
CVE-2025-21061 7.1 HIGH SAMSUNG Smart Switch 安全漏洞
CVE-2025-21048 6.7 MEDIUM SAMSUNG Mobile devices 安全漏洞
CVE-2025-21065 6.6 MEDIUM SAMSUNG Retail Mode 安全漏洞
CVE-2025-21059 6.2 MEDIUM SAMSUNG Health 安全漏洞
CVE-2025-21044 5.7 MEDIUM SAMSUNG fingerprint trustlet 安全漏洞
CVE-2025-21049 5.5 MEDIUM SAMSUNG Mobile devices 安全漏洞
CVE-2025-21060 5.5 MEDIUM SAMSUNG Smart Switch 安全漏洞
CVE-2025-21047 5.2 MEDIUM SAMSUNG Mobile devices 安全漏洞
CVE-2025-21063 4.6 MEDIUM SAMSUNG Voice Recorder 安全漏洞
CVE-2025-21055 4.3 MEDIUM SAMSUNG Mobile devices 安全漏洞
CVE-2025-21057 4.0 MEDIUM SAMSUNG Notes 安全漏洞
CVE-2025-21054 4.0 MEDIUM SAMSUNG Mobile devices 安全漏洞
CVE-2025-21053 4.0 MEDIUM SAMSUNG Mobile devices 安全漏洞
CVE-2025-21045 4.0 MEDIUM SAMSUNG Mobile devices 安全漏洞
CVE-2025-21052 4.0 MEDIUM SAMSUNG Mobile devices 安全漏洞
CVE-2025-21067 4.0 MEDIUM SAMSUNG Notes 安全漏洞

Showing top 20 of 26 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Samsung Notes
Same vendor: Samsung Mobile

V. Comments for CVE-2025-21066

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